What should you check before buying?
Start with the wording and nutrition panel on the exact pack, then decide whether caffeine choice and individually sealed portions matter for your sale.
| Priority | What to check | Your needs |
| Sugars and wording |
Read sugars per 100ml on the exact pack. Use its product name rather than replacing “zero sugar” with a different claim such as “no added sugar”. |
I want visitors to recognise the cola and see its sugar information without relying on my own description. |
| Caffeine choice |
Check the variant name and ingredients. Coca-Cola Great Britain and Pepsi UK list caffeine in standard Coca-Cola Zero Sugar and Pepsi MAX; Pepsi MAX No Caffeine is a separate option. |
Some visitors may avoid caffeine, so I want any caffeine-free option to be clearly distinguishable. |
| Sweeteners and warnings |
Keep ingredient and warning text readable. The checked Coca-Cola Zero Sugar and Pepsi MAX formulations list aspartame and a source of phenylalanine; Pepsi MAX No Caffeine also carries that warning. |
Customers need to inspect the original label, particularly if phenylalanine is relevant to them. |
| Outdoor serving |
Compare individually sealed pack sizes with the number of portions you plan to offer. Follow the pack’s storage instructions and check its best-before marking. |
Handing over sealed portions would let me avoid pouring from an open bottle and keep each drink’s label with it. |
Relevant brands and retailers
These references help distinguish named cola variants and pack formats; a retailer listing is not a substitute for checking the pack offered for sale.
Coca-Cola
Coca-Cola Great Britain lists 0g sugars per 100ml for Coca-Cola Zero Sugar. Coca-Cola Zero Sugar Zero Caffeine is a separately named variant.
- The standard variant’s UK product information gives a per-100ml sugar figure.
- That standard formulation lists caffeine and aspartame and carries a phenylalanine warning; do not confuse it with the caffeine-free variant.
Pepsi
Pepsi UK lists 0g sugars per 100ml for both Pepsi MAX and Pepsi MAX No Caffeine.
- The variant names distinguish a standard option from one intended for caffeine avoidance.
- Both checked formulations list aspartame and acesulfame K and carry a phenylalanine warning.
Sainsbury's
A Sainsbury's listing shows Coca-Cola Zero Sugar in a 12 × 150ml can pack.
- The listed format provides smaller individually sealed portions.
- Check the actual pack and listing when choosing a variant or portion size.
Tesco
A Tesco listing identifies Coca-Cola Zero Sugar Zero Caffeine in a 500ml bottle.
- The named variant offers a way to look specifically for caffeine-free cola.
- A 500ml bottle is a different serving format from an individual can; check how you intend to hand it over.
Asda
An Asda listing identifies a Coca-Cola Zero Sugar pack.
- The listing provides another route to compare the named branded product and its pack format.
- Check the pack’s current ingredient and nutrition information before describing it to customers.
Joybuy bestseller-list entry
This is an excerpt from Joybuy Softdrinks Bestsellers, retaining the product’s original position on that list; it is not a ranking of the cola packs below.
| Rank | SKU name | Main specifications | Why it appears | Platform |
| 9 |
Coca-Cola Zero Sugar 18 × 330ml |
18 × 330ml pack |
Appeared at rank 9 on Joybuy Softdrinks Bestsellers. Its position on that list does not establish which cola suits every car boot sale. |
Joybuy |
Cola packs on Joybuy
These packs cover named caffeine-free and standard cola options in multipack formats for individually served refreshments. Check the exact pack’s sugar information and ingredients before using either “zero sugar” or “no added sugar” in your own signage.
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Diet Coke No Caffeine 24 × 330ml
A named no-caffeine option in a 24 × 330ml pack. Check the original label for its sugar figure, ingredients and warnings before offering it to visitors.
View on Joybuy
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Pepsi MAX Caffeine Free 24 × 330ml
For visitors avoiding caffeine, this is a separately named 24 × 330ml variant. Pepsi UK lists 0g sugars per 100ml for Pepsi MAX No Caffeine; its checked formulation contains aspartame and carries a phenylalanine warning.
View on Joybuy
No image available
Coca-Cola Diet Coke 24 × 330ml
A 24 × 330ml Diet Coke pack for individually sized refreshments. Check the actual pack’s sugar declaration, caffeine information and ingredient warnings rather than treating “Diet” as a substitute for its label.
View on Joybuy
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Pepsi MAX 24 × 330ml
A standard Pepsi MAX option in a 24 × 330ml pack. Pepsi UK lists 0g sugars per 100ml for Pepsi MAX; its checked standard formulation contains caffeine and aspartame and carries a phenylalanine warning.
View on Joybuy
No image available
Coca-Cola Zero Sugar 18 × 330ml
An 18 × 330ml pack for individually sized refreshments. Coca-Cola Great Britain lists 0g sugars per 100ml for standard Coca-Cola Zero Sugar; that formulation contains caffeine and aspartame and carries a phenylalanine warning.
View on Joybuy
Frequently asked questions
Are “no added sugar” and “sugar-free” interchangeable on a sale sign?
No. They are different descriptions, so use the manufacturer’s exact product name rather than substituting one for the other. If you show a sugar figure, copy it from the nutrition panel on the pack you are selling.
Does zero-sugar cola contain caffeine?
It can. The standard Coca-Cola Zero Sugar and Pepsi MAX formulations checked by their UK manufacturers list caffeine. If visitors may avoid it, choose an explicitly named caffeine-free variant, such as Pepsi MAX No Caffeine, and check the actual pack.
Why keep the ingredient label visible for visitors with PKU?
The NHS says aspartame is unsuitable for people with phenylketonuria (PKU) because it contains phenylalanine. The checked Coca-Cola Zero Sugar and Pepsi MAX formulations list aspartame and carry a phenylalanine warning, so customers need access to the original label rather than a seller’s shortened description.
How should sealed cola be stored before a car boot sale?
Follow the instructions on the pack you buy. Joybuy’s Coca-Cola Zero Sugar product information says to store it in a cool, dry place away from odours, heat and freezing temperatures; check the best-before marking on the packaging before the sale.